A. The reporter wanted know why I hadn’t taken a picture when I had seen the UFO.

B. The reporter wanted know why I didn’t taken a picture when I had seen the UFO.

C. The reporter wanted to know why I hadn’t taken a picture when I had seen the UFO.

D. The reporter wanted to know why I didn’t taken a picture when I had seen the UFO.

A. Do you think astronauts feel great sense of loneliness when traveling alone in space?

B. Do you think astronauts feel great sense of loneliness when travel alone in space?

C. Do you think astronauts feel a great sense of loneliness when travel alone in space?

D. Do you think astronauts feel a great sense of loneliness when traveling alone in space?

A. About 95% of the atmosphere on Mars is carbon dioxide, which is poisonous to breath.

B. About 95% on the atmosphere on Mars is carbon dioxide, which is poisonous breath.

C. About 95% on the atmosphere on Mars is carbon dioxide, which is poisonous to breath

D. About 95% of the atmosphere on Mars is carbon dioxide, which is poisonous breath.

A. In the film, John Harrison is a space terrorist who wants destroy the Earth.

B. In the film, John Harrison is space terrorist who wants to destroy the Earth.

C. In the film, John Harrison is a space terrorist who wants to destroy the Earth.

D. In the film, John Harrison is space terrorist who wants destroy the Earth.

A. The biggest problem for humans to live in other planets is lack of atmosphere and water.

B. The biggest problem for humans living on other planets is lack of atmosphere and water.

C. The biggest problem for humans to living in other planets is lack of atmosphere and water.

D. The biggest problem for humans to live on other planets is lack of atmosphere and water.